python正则表达式

我的问题是，如何在函数中应用“info”， 我不知道怎么做

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如果您有任何帮助，我们将不胜感激

我想这就是您想要的：

file = open("demo.txt","r")
text = file.read()

def find(info):
    match = re.findall(r"info+\w+\d+",text)
    if match:
        print(match)
    else:
        print("Not found!")

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稍微检查一下Python语法

file = open("demo.txt","r")
text = file.read()

def find(info,text):
    match = re.findall(info + "+\w+\d+",text)
    if match:
        print(match)
    else:
        print("Not found!")

# This is how you call the function
find("whatever info is supposed to be",text)

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你能说清楚点吗？该函数接受参数

info

，但您正在为

findall

函数提供参数

text

…很抱歉造成混淆！这仍然使用了

re.findall

中的全局变量

text

，而不是函数参数

info

@isosceleswheel:Well spotted-代码相应地进行了调整非常感谢您的帮助！！

# beware "file" is a python keyword so you might want to use a different name
file = open("demo.txt","r")
# your text is called "text" so that is the argument to use in the function call
text = file.read()

# define the function: 

def find(info):
    # your variable is called "info" in the function so call findall on "info"
    match = re.findall(r"info+\w+\d+",info)
    if match:
        print(match)
    else:
        print("Not found!")

# call the function on "text" since that is the name of the local variable you created with file.read()::
find(text)